/Engine/Plugins/Experimental/Mutable/Source/CustomizableObject/Classes/MuCO/CustomizableObjectSystem.h
[Texture Parameters] Get a list of all the possible values for external texture parameters according to the various providers registered with RegisterImageProvider.
[TArray](API\Runtime\Core\Containers\TArray)< [FCustomizableObjectExternalTexture](API\Plugins\CustomizableObject\MuCO\FCustomizableObjectExternalTextu-) > GetTextureParameterValues()